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Ruby on Rails is an open-source web application framework used by web developers for rapid development of a wide variety of online applications, including ecommerce, social media and productivity. On Upwork, the world’s largest online workplace, companies hire Ruby developers to successfully complete jobs including shopping cart integration, resource management applications, migration projects, and chat applications.

Project Manager with development and system administration skills

Russia
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Last active: 12/11/2010
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Tests: 4
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Portfolio: 3

I'm IT geek and from 2004 I developed a huge amount of various software products and services. Most of all I'm experienced in Product and Project Management, Ruby and Ruby on Rails development and Linux administration.
If you need a man to solve tough technical or architectural problems you are welcome.

RoR/Java/JS software developer

Russia
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Last active: 1 day ago
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Tests: 2
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Portfolio: 2

More than 10 years in development of different software. Desktop and Web related.
I Work as half time freelancer and have good knowledge in Ruby on Rails, Java, JavaScript programming languages. I prefer to use Test/Behavior Driven Development technics so final product will be robust and act as requested.

Experienced Ruby backend developer

United Kingdom
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Last active: 03/03/2013
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Tests: 2
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Portfolio: 1

For last five years I've been participating in and leading the development of several large Ruby projects (not only web-oriented).
I deeply know Rails and Merb internal code.
I participate in Ruby community and often contribute to famous projects, such as Cucumber, Watir, etc. See my profile at a github: http://github.com/DanielVartanov
I passionately adopt ideas of agile development and successfully completed several enterprise projects using these techniques.
Before programming in Ruby I participated in development of enterprise solutions (used Java, C++). I have major in mathematics and computer science, therefore, I can apply effective algorithms with the maximal simplicity of code.

Developer

Russia
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Last active: 5 months ago
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Tests: 1

I like complex algorithms and data structures programming. Such as Rebalancing after deletion in B-tree, Monte Carlo simulation and over. The way where I want to work in near future is Methods of Optimization.

Senior Ruby developer

Ukraine
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Last active: 20 hours ago
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Tests: 1
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Portfolio: 3

More than 4-year experience as a developer of web technologies.
Has worked at almost all types of web applications starting from corporate web sites and up to high-load systems + frameworks.
Focused in using modern technologies and methodologies for creating best online services.

Web Developer

Belarus
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Last active: 1 month ago
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Tests: 1

Ruby on Rails - since August 2011 to present day - over than 12 projects
Included - HTML5, Javascript, AngularJS, jQuery, CSS3, SASS, CoffeeScript
,Slim, Haml, MySQL/Postgre/SQlite, Sphinx, Solr
I really like working with Ruby on Rails, but nonetheless I like tasks included clientside technologies. Because either frontend and backend can contain difficult problems. And solving difficult problems is most interesting part of the programming.

Database Specialist (Design, Tuning and Development)

Philippines
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Last active: 3 days ago
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Tests: 3
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Portfolio: 4

More than 15 years experience in database architecture, development, optimization and administration as well as business intelligence, using Oracle, MySQL and PostgreSQL and MongoDB databases.
Particularly interested in architecture, development and tuning to support high performance applications and back-end business intelligence and reporting.
Explores and uses databases features available such as stored programs, triggers, special table types and functions to develop best-fit solutions. Also uses tools to determine
Knowledgeable in data warehousing techniques and use of tools such as Pentaho Business Intelligence platform. and developing ad-hoc scripts for reporting and ETL.
I was also 2012's top expert for MySQL Server in Experts-Exchange.com (http://www.experts-exchange.com/expertAwards/annual.jsp?year=2012). I have also developed some tools to help me manage MySQL (https://github.com/johanntagle/modified_query_profiler and https://github.com/johanntagle/mysql_online_alter_table), though I have since used more sophisticated tools from companies such as Percona.

Senior Software Developer

Mexico
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Last active: 1 month ago
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Tests: 5

I'm a full-stacl software developer. I use to follow and implement code standards and also to audit and modify code for a better performance, knowledge and understanding. The best part is that i love what i do as i live for it. It's like i'm beeing payed for having lots of fun. Wait, that's true in fact!!! I love technology and development innovation and i when i'm sleeping i dream about code, implementations and deployments.
I have experience developing professional enterprise software solutions under many technologies, mainly with Java and Ruby On Rails.
I have good written and verbal english communication skills. I consider myself as proactive, responsible and can be part of any team work. It doesn't matter what's the problem to solve or what's the programming language to solve it, i can learn it and will solve it in the best possible way.